Overview
The AWR1642ABIGABLQ1 is a single-chip 76- to 81-GHz Frequency Modulated Continuous Wave (FMCW) radar sensor developed by Texas Instruments. This device is designed to simplify the implementation of automotive radar sensors, offering a self-contained solution that integrates multiple components into a single chip. Built using TI’s low-power 45-nm RFCMOS process, the AWR1642 enables high levels of integration in a compact form factor, making it ideal for low-power, self-monitored, and ultra-accurate radar systems in the automotive sector.
Key Specifications
| Parameter | Specification |
|---|---|
| Frequency Range | 76 to 81 GHz |
| Available Bandwidth | 4 GHz |
| Receive Channels | Four |
| Transmit Channels | Two |
| TX Power | 12 dBm |
| RX Noise Figure | 14 dB (76 to 77 GHz), 15 dB (77 to 81 GHz) |
| Phase Noise at 1 MHz | –95 dBc/Hz (76 to 77 GHz), –93 dBc/Hz (77 to 81 GHz) |
| Processor | Arm Cortex-R4F-based radio control system, C674x DSP for FMCW signal processing |
| On-chip Memory | 1.5 MB |
| Interfaces | CAN, CAN-FD, SPI, UART, I2C, GPIO, 2-lane LVDS |
| Package | 161-pin 10.4 mm × 10.4 mm flip chip BGA |
| Junction Temperature Range | –40°C to 125°C |
Key Features
- Integrated PLL, transmitter, receiver, baseband, and ADC
- Ultra-accurate chirp (timing) engine based on fractional-N PLL
- Built-in calibration and self-test (monitoring)
- Self-calibrating system across process and temperature
- Supports autonomous mode (loading user application from QSPI flash memory)
- Integrated peripherals including up to 6 ADC channels, up to 2 SPI channels, up to 2 UARTs, I2C, and GPIOs
- Device security features including secure authenticated and encrypted boot support, customer programmable keys, and crypto software accelerators
- Functional safety compliance with ISO 26262 certification up to ASIL B and AEC-Q100 qualified
- Embedded self-monitoring with no host processor involvement and complex baseband architecture
- Embedded interference detection capability
- Power management with built-in LDO network for enhanced PSRR and dual voltage support (3.3 V/1.8 V)
Applications
- Blind spot detection
- Lane change assistance
- Cross traffic alert
- Parking assistance
- Occupancy detection
- Gesture recognition
Q & A
- What is the frequency range of the AWR1642?
The AWR1642 operates in the 76 to 81 GHz frequency range.
- How many receive and transmit channels does the AWR1642 have?
The AWR1642 has four receive channels and two transmit channels.
- What is the TX power of the AWR1642?
The TX power of the AWR1642 is 12 dBm.
- What are the RX noise figures for the AWR1642?
The RX noise figures are 14 dB (76 to 77 GHz) and 15 dB (77 to 81 GHz).
- What type of processor does the AWR1642 use?
The AWR1642 uses an Arm Cortex-R4F-based radio control system and a C674x DSP for FMCW signal processing.
- What interfaces are available on the AWR1642?
The AWR1642 supports CAN, CAN-FD, SPI, UART, I2C, GPIO, and a 2-lane LVDS interface.
- Is the AWR1642 compliant with functional safety standards?
Yes, the AWR1642 is ISO 26262 certified up to ASIL B and AEC-Q100 qualified.
- What is the package type and size of the AWR1642?
The AWR1642 comes in a 161-pin 10.4 mm × 10.4 mm flip chip BGA package.
- What is the junction temperature range of the AWR1642?
The junction temperature range is –40°C to 125°C.
- Does the AWR1642 support autonomous mode?
Yes, the AWR1642 supports autonomous mode by loading user applications from QSPI flash memory.
